Sandhill Co. began operations on July 1. It uses a perpetual inventory system. During July, the company had the following purchases and sales. Purchases Date Units Unit Cost Sales Units July 1 5 $170 July 6 3 July 11 6 $184 July 14 5 July 21 7 $195 July 27 5 Collapse question part (a1) Partially correct answer. Your answer is partially correct. Try again. Calculate the average cost per unit at July 1, 6, 11, 14, 21 & 27. (Round answers to 2 decimal places, e.g. $105.50.) Calculate the average cost per unit at July 1, 6, 11, 14, 21 & 27. (Round answers to 2 decimal places, e.g. $105.50.) Average cost for each unit July 1 July 6 July 11 July 14 July 21 July 27